From 4bcf805e84857187af43ba7502bb1c9cbdc7cfc1 Mon Sep 17 00:00:00 2001
From: Lieven Hey <lieven.hey@kdab.com>
Date: Tue, 17 Sep 2024 13:22:51 +0200
Subject: [PATCH] feat: open more perf files

Currently `hotspot dir` only opens perf.data files. This patch extends
this to perf.data, perf.data.old and perf.data.perfparser files.
---
 src/main.cpp | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index 58e46ca8..a278b474 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -236,7 +236,15 @@ int main(int argc, char** argv)
     if (!files.isEmpty()) {
         auto file = files.constFirst();
         if (QFileInfo(file).isDir()) {
-            file.append(QLatin1String("/perf.data"));
+            // search for common perf data files in dir and open the first one found
+            // if none is found, hotspot will complain, that `file` is not a file
+            for (const auto& perfDataFile : {QStringLiteral("/perf.data"), QStringLiteral("/perf.data.old"),
+                                             QStringLiteral("/perf.data.perfparser")}) {
+                if (QFileInfo::exists(file + perfDataFile)) {
+                    file.append(perfDataFile);
+                    break;
+                }
+            }
         }
 
         if (parser.isSet(exportTo)) {
@@ -267,9 +275,12 @@ int main(int argc, char** argv)
     } else {
         // open perf.data in current CWD, if it exists
         // this brings hotspot closer to the behavior of "perf report"
-        const auto perfDataFile = QStringLiteral("perf.data");
-        if (QFile::exists(perfDataFile) && window) {
-            window->openFile(perfDataFile);
+        for (const auto& perfDataFile :
+             {QStringLiteral("perf.data"), QStringLiteral("perf.data.old"), QStringLiteral("perf.data.perfparser")}) {
+            if (QFileInfo::exists(perfDataFile) && window) {
+                window->openFile(perfDataFile);
+                break;
+            }
         }
     }
     if (window)